import java.util.Scanner;

public class A02 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int week = sc.nextInt();
        switch (week) {
            case 1, 2, 3, 4, 5 -> System.out.println("牛马");
            case 6, 7 -> System.out.println("爽翻");
            default-> System.out.println("输入错误");
        }
    }
}
